diff --git a/grub-core/net/tcp.c b/grub-core/net/tcp.c
index 8fbf0bdfa..c64170edf 100644
--- a/grub-core/net/tcp.c
+++ b/grub-core/net/tcp.c
@@ -554,6 +554,8 @@ grub_net_recv_tcp_packet (struct grub_net_buff *nb,
 	    sock->unack_first = NULL;
 	    sock->unack_last = NULL;
 
+	    grub_netbuff_free (nb);
+
 	    return GRUB_ERR_NONE;
 	  }